Strange features about the structure and shape of the eyes can help animals observe enemies or find prey more easily.
According to scientists, the eyes of animals evolved about 540 million years ago as a simple light detector.
Mantis shrimp is considered by many to possess the most unusual eyes in the animal world. Each of their eyes has 12 different light receptors, helping them to recognize colors
The development of technology enables scientists today to capture images that few could expect. Pictures of the animals' eyes below are an example.